横向
1
Center of an atom or cell
3
Gas form of a liquid
6
Unit of force
8
Smallest unit of an element
纵向
2
Chemical element in table salt
4
Unit of power
5
Mass per unit volume
7
Second lightest element
9
Particle of light
Center of an atom or cell
Gas form of a liquid
Unit of force
Smallest unit of an element
Chemical element in table salt
Unit of power
Mass per unit volume
Second lightest element
Particle of light